. "Authored: Akkerman, JW, 2009-06-03"^^ . "Reviewed: Heemskerk, JW, 2010-09-01"^^ . "Edited: Jupe, S, 2010-09-01"^^ . "Rap1 signalling is terminated by the hydrolysis of bound GTP to GDP. The intrinsic GTPase activity of Rap1 is greatly enhanced by GTP-ase activating proteins (GAPs)."^^ . . . . . . . . . "Rap1 signal termination by Rap1GAPs"^^ . . . .